Finding the Fourth Proportional to 105,025.62, 144,929.58 and 59,697.30

Step by Step Solution

1. Step 1: Write the proportion equation
   105,025.62 : 144,929.58 = 59,697.30 : x
2. Step 2: Convert to fraction form
   105,025.62/144,929.58 = 59,697.30/x
3. Step 3: Cross multiply
   105,025.62x = 144,929.58 × 59,697.30
4. Step 4: Simplify right side
   105,025.62x = 8,651,904,616.13
5. Step 5: Solve for x
   x = 8,651,904,616.13/105,025.62
6. Step 6: Final answer
   x = 82,378.99